SOFT SWITCHING INVERTER CIRCUIT

PROBLEM TO BE SOLVED: To change over a switching element with required degree of flexibility without the need for a middle-point potential. SOLUTION: An arm (a), an arm (b), an arm (c) and an auxiliary arm (f) are connected in parallel with a battery B. Respective middle points of the arms (a), (b),...

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Bibliographic Details
Main Author FUMA HIROO
Format Patent
LanguageEnglish
Published 02.11.2000
Edition7
Subjects
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Summary:PROBLEM TO BE SOLVED: To change over a switching element with required degree of flexibility without the need for a middle-point potential. SOLUTION: An arm (a), an arm (b), an arm (c) and an auxiliary arm (f) are connected in parallel with a battery B. Respective middle points of the arms (a), (b), (c) are connected to the middle point of the auxiliary arm (f) via bidirectional switches and a coil. The switching element of every arm is switched over in such a way that the medium-point potential of each arm is switched over to a battery voltage from a ground level. After that, the switching element of the auxiliary arm is switched over, in such a way that the middle- point potential of the auxiliary arm is switched over to the ground level from the battery voltage. The auxiliary arm is changed over in such a way that a coil current is regenerated and after that, when the coil current becomes zero, the bidirectional switches are switched, and this soft switching inverter circuit is switched.
Bibliography:Application Number: JP20000034008